this is outputting int Q even when the if statement evaluates to false. why?

Question

#include <iostream>

using namespace std;

int main()
{
string a ="i am learning c++!";
cout << "Hello world!" << endl;
cout << a << endl;
string b ="it is tedious.";
cout << b << endl;
string c="22x=220\n what does x equal?\n";
cout<< c;
string Q="correct";
string W="false";
int qwerty;
cin>> qwerty;
if (qwerty=10){cout<<Q;
}
else {cout<<W;
}
return 0;
}

Answer 1

You are assigning 10 to qwerty as you only have one =. 10 is true so you always get Q.

Answer 2

You assigned 10 to qwerty, the returned value is always true:
if (qwerty = 10)

You compare qwerty with 10. This returns true if qwerty equals 10, and false otherwise:
if (qwerty == 10)